On last night’s episode of The Big Bang Theory, Leonard started working with a physicist even smarter than him, Dave (guest star Michael Trucco) and quickly began to worship him. However, when Leonard injured himself on Dave’s motorcycle, Penny got a chance to meet Dave and quickly fell for him making Leonard just a little jealous.

Sheldon, meanwhile, teamed up with Raj and Wolowitz on a journey to find Penny a gift after she bought him one. It was a very funny episode and you can catch up on all the story with our “The Bath Item Gift Hypothesis” recap.